"I've often said if I had to choose my last dish on earth it would be a bowl of pasta with tomato sauce, " says Ms. Rogers.

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Other options include frozen or regular yogurt topped with dried fruit and nuts, a big slice of banana bread and milk, or even a bowl of pasta tossed with olive oil and parmesan cheese.

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Or, for more thoroughly familiar fare, end your child-friendly Delhi day in at the United Coffee House for a comforting bowl of pasta marinara, the All American Diner for a pretty decent hotdog or The Kitchen at the heart of the relaxed Khan Market, for a big, familiar plate of fish and chips before bedtime.

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At this point, the app can only identify certain foods, and only provides calorie results for standard portions (it can't tell the difference between a plate and bowl of pasta, for example).

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